If you look carefully at the meter with the “M” on the dial you will see it is pointing to 2.4 as in mach 2.4 or about 1,700 MPH, maximum velocity for this flight.
As Newton and Einstein predicted, there is no obvious sensory indication that you are traveling this fast. In fact, the only time in the flight that speed was apparent was on takeoff when I was momentarily thrust back in the seat, and even then only for the first few moments.